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J and JP Seals
Hennegan and Associates is a proud supplier of The D.S. Brown Company’s J and JP – Series Seal Profiles.
The J and JP-Series Profiles includes an extruded elastomeric profile and a…
Bridge Drain Systems
For over 20 years, Hennegan and Associates has been the leading supplier of fiberglass drainage systems to contractors all over the Midwest. Because no two bridges are the same, our bridge drainage…
Strip Seal, Modular and Finger Expansion Joints
Hennegan and Associates supplies three steel systems – Modular Expansion Joints , Strip Seal Expansion Joints and Fabricated Steel Plate Expansion Joints.
Preformed Neoprene Compression Seals
Hennegan and Associates supplies The D.S. Brown Company’s Delastic® Preformed Neoprene Compression Seals.